Yesterday i installed in my PC the newly released Windows 8 64Bits. Before this, i was using Windows 7 64Bits.

In the Win7 i had some lag problems running IWD2, but after using the patch "ie_ddrawfix" that i found in this topic here: http://www.gog.com/en/forum/icewind_dale/iwd2_runs_poorly_on_w7 solved the problem. Deactivating the directdraw acceleration made the game run very smoothly. I played the game until chapter five without any problem.

Yesterday i installed Windows 8 in my PC and now the game is running extremely bad, with so much lag that i can't play it.

I tryed to use the "ie_ddrawfix" again but things got even worse.

So, is there any way to resolve the problem and make the game run smoothly again, now in Win8?

This is just a guess, but I'm thinking that Win8 is too new, too unstable or just plain incompatible with this game.

Every other windowsversion have been unstable and full of flaws, and there have also been statements from several gamedevelopers nowadays that they will not make their games compatible with Win8.

My guess is that you won't be able to play it without lags, unless there is some compatibillity-option in win8.

That's a shame. As i can't play IWD2 anymore, I installed IWD1 on Windows 8 and i'm playing it again. The game is running flawless, very smoothly. It's really a shame that i can't play IWD2 anymore, i liked it much more than IWD1.